Blue Shark
Prionace glaucaAlso known as Great Blue Shark, Blue Whaler
Blue sharks are sleek, exceptionally hydrodynamic predators easily recognized by their deep indigo backs, vibrant blue flanks, and stark white bellies. They glide effortlessly through the open ocean using unusually long pectoral fins, embarking on transoceanic migrations that span thousands of miles in search of prey. These active hunters gather in large, sex-segregated schools during their travels, playing a vital role in regulating pelagic food webs.
- diet
- Carnivorous (primarily squid, bony fish, and pelagic crabs)
- family
- Carcharhinidae
- threats
- Commercial longline bycatch, shark finning, and marine plastic pollution
- life Span
- 15 to 20 years
NT
A large predator that may bite if provoked or during feeding frenzies; maintain a respectful distance when diving.
Capable of inflicting severe bites due to their size and sharp, serrated teeth, particularly when food is present.
Never attempt to touch or feed them, and exit the water calmly if they display persistent, inquisitive behavior.Listed as Near Threatened due to heavy pressure from commercial bycatch and the global shark fin trade.
Support sustainable seafood choices and advocate for longline fishing regulations to help protect pelagic populations.- Keep Distance: Avoid blocking their swimming path or making sudden movements if encountered while diving.
- Avoid Baiting: Do not use spear-fishing catch or chum to attract them, as this can trigger competitive feeding behavior.
- Watch the Fins: Observe pectoral fin posture, as lowered fins can indicate agitation or defensive posturing.